Two architectural facade panels can look identical in an elevation and still produce very different fabrication quotes. One might use a repeatable round-hole pattern and standard folded returns. The other might need pattern alignment across several modules, concealed brackets, movement slots and individually protected appearance faces. None of those differences is obvious from a polished rendering.
That gap between the architectural picture and the manufacturing package is where pricing assumptions start to multiply. A useful facade RFQ gives the fabricator enough controlled information to understand what must be cut, formed, finished, inspected and packed before installation even begins.
A useful RFQ converts the architect’s appearance intent into released, measurable manufacturing inputs. The facade designer and installation contractor retain responsibility for building-envelope design, structural approval, waterproofing, fire strategy, code compliance and installation. DRAmetal’s scope is the fabrication of drawing-defined metal panels, brackets and agreed mechanical subassemblies.
Start with panel identity and elevation coordination
Give every panel a unique mark that connects the elevation, assembly model, fabrication drawing and packing list. Identify orientation, face side, floor level, corner condition and adjacent panel references. A mirrored panel may use the same blank size while moving its perforation origin, slots or bracket locations.
Separate repeatable families from special conditions around windows, soffits, parapets, penetrations and building corners. Include the installed coordinate system and identify which dimensions are controlled by the building survey rather than by the sheet-metal supplier. For visual continuity, define the reference line from which patterns align across neighboring panels.
The architectural facade panel fabrication page shows the relevant build-to-print scope: perforated cladding, formed panels, sunshades and related mounting components.
Define perforation from the actual visible field
State the hole shape, dimensions, pitch, layout orientation and required open-area percentage. Clarify whether open area applies to the perforated field alone or to the complete finished panel including solid borders, folds, attachment zones and unperforated identification areas. These definitions can produce materially different percentages from the same drawing.
Also release:
- Pattern origin, alignment direction and edge termination rules.
- Solid margins around returns, brackets, slots and penetrations.
- Minimum ligament requirements established by the project designer.
- Treatment of partial holes at panel boundaries and module joints.
- Appearance-face requirements, burr direction and acceptable pattern transitions.
- Any sample, mock-up or visual-review condition required before production.
Our perforated metal design guide explains pattern terminology, while laser cutting becomes part of the quotation when the released geometry requires custom apertures or nonstandard edge details.
Release panel size, formed returns and handling limits
Specify finished width and height, material thickness, return depths, flange angles and bend-relief geometry. Distinguish dimensions measured before finishing from those verified after coating. Cosmetic surfaces should identify which faces, edges and corners remain visible after installation.
Panel proportions influence handling, blank utilization and flatness control. Large uninterrupted fields, heavy perforation and asymmetric returns can respond differently during forming or finishing. Rather than assigning a generic flatness promise, define the inspection condition, support arrangement and project-specific acceptance criteria.
Document whether returns include hems, stiffeners, welded corner closures or separate reinforcement. If a closure is visible, state its appearance requirement and whether grinding or blending is included. Related sheet metal bending and manufacturing-focused design rules should be reviewed before the panel geometry is frozen.
Coordinate thermal movement with the attachment design
Facade panels experience movement when material temperature changes. The design team must determine the relevant temperature range, substrate behavior, support spacing, joint width and structural attachment strategy. The fabricator needs the resulting released hole shapes, slot directions, fixed points and bracket interfaces.
For illustration, a 2.4-meter aluminum panel with a project-assumed expansion coefficient of 23 × 10⁻⁶ per degree Celsius and a 40°C temperature change would change length by approximately 2.2 millimeters. This example explains why movement cannot be ignored; it does not establish an approved joint or attachment design.
Identify which point is fixed and where movement is permitted. Show whether washers, isolators or spacers are supplied by the installer or included in the fabrication package. Never assume that a slot visible in a rendering is a validated structural or thermal solution.
Specify brackets, interfaces and installation ownership
Provide bracket drawings, material, thickness, hole patterns, orientation, finish and quantity per panel. Define whether brackets ship loose, are attached to the panel or belong to a separate contractor-supplied support system. Clarify access for fasteners after the panel is formed.
| Interface item | Required RFQ input | Responsible design owner |
|---|---|---|
| Panel-to-bracket location | Released datums, hole or slot geometry and orientation | Facade designer or contractor |
| Substrate attachment | Approved structural connection and installation method | Project structural team and installer |
| Movement allowance | Fixed points, sliding locations and joint requirements | Facade designer |
| Isolation and corrosion | Specified separators, compatible fasteners and contact conditions | Project designer |
| Assembly scope | Loose parts, attached hardware or packed installation kits | Buyer-defined purchasing scope |
Identify material, finish and visible acceptance conditions
Name the material grade, temper, thickness and permitted substitutions. Aluminum, stainless steel and weathering steel have different forming, appearance and environmental considerations. The project designer must select a material suitable for the service environment and approve any alternative.
For powder coating, anodizing or other specified systems, release the color reference, gloss, texture, masking zones, appearance face and any project-defined coating evidence. Identify whether cut edges, folded returns and bracket interfaces require the same treatment as the primary visible surface. Review surface finishing options before comparing supplier quotations.
State the inspection distance, lighting conditions and approved sample if cosmetic acceptance matters. Coating-system selection, durability expectations and fire-related approval remain project-specific design responsibilities; a fabricated panel alone does not establish building-code compliance.
Keep drainage and weatherproofing boundaries explicit
Rainscreen geometry may require released drain holes, ventilation openings, cavity interfaces and clearances. These features can be manufactured to the approved drawing, but the panel supplier should not infer a complete waterproofing assembly from the word “rainscreen.”
Identify cavity-facing surfaces, drainage-feature locations and protected cut edges where the released design requires them. Waterproof membranes, sealants, fire stopping, insulation, cavity ventilation performance and site installation must be assigned explicitly to the responsible contractor or design professional.
Request first-article evidence and installation-sequence packing
The purchase package should identify which features require first-article documentation: panel mark, material identity, finished dimensions, perforation origin, open-area definition, return angles, bracket interfaces and agreed finish evidence. Record the inspection state and controlled drawing revision.
Specify protective film, interleaving, corner protection, lifting limitations, crate identification and the desired delivery sequence. Packing by elevation, floor or installation zone can reduce site confusion, but the exact sequence must be provided by the buyer.
Related customer project: Architectural Facade Panels: Color and Flatness Control.
Why two visually similar panels can receive different quotes
Consider two illustrative 1,200-by-2,400-millimeter panels made from the same nominal aluminum sheet. One repeats a simple hole pattern, uses four consistent returns and ships as a protected loose cassette. The other carries a pattern that must align with neighboring panels, has different solid margins around a window opening, includes three separate brackets and needs floor-by-floor packing.
The second panel may require a different nesting strategy, additional formed features, extra hardware handling and more inspection coordination even though its front elevation looks similar. This comparison is a planning example, not a claim about a completed customer project or a guaranteed price difference.
When comparing quotations, ask each supplier to confirm the same material definition, pattern basis, bracket scope, finish standard and packing assumption. If those inputs differ, a lower line-item price may simply reflect a smaller scope.
Send a complete architectural facade panel RFQ
Before requesting pricing, confirm that the package includes:
- Panel schedule, marks, elevations and current drawing revisions.
- Material grade, thickness, finished dimensions and formed-return details.
- Perforation geometry, pattern origin, solid borders and open-area basis.
- Bracket drawings, slot direction, fixed points and installation ownership.
- Approved finish, visible faces, masking and appearance acceptance rules.
- Released drainage features and clearly assigned building-envelope responsibilities.
- First-article records, protective packing, quantities and delivery sequence.
Use the broader sheet metal RFQ checklist to capture commercial and inspection inputs, then send the controlled facade drawing package to DRAmetal for a fabrication-scope review.
Architectural facade RFQ questions buyers often ask
Is an architectural rendering enough to quote fabricated facade panels?
Usually not. A rendering explains design intent, but the fabricator still needs released panel dimensions, material, perforation geometry, formed returns, attachment details, finish and an agreed inspection or packing scope.
Does a facade panel supplier design the full rainscreen system?
Not automatically. The responsible facade designer and installation team own the complete envelope, structural attachments, drainage strategy and project approvals. A build-to-print supplier fabricates the specific metal components identified in the released package.
Which facade details most often change a manufacturing quote?
Pattern alignment, open-area definition, formed-return geometry, bracket quantity, appearance-face finishing, protective packing and panel-by-panel identification can all change the work content. Confirm those assumptions before comparing suppliers.
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